Hi, Don, I am aware of the difference, but the click/crackle I had on the very damaged record that ClickRepair did so well on approaches crackle. Since each tool works differently for different people, this comment is worth repeating. On 2012-04-21 9:03 PM, Dan Nelson wrote: > Click Repair is a great tool for click and crackle reduction for LPs and 78s. > The nice thing is you can adjust how agressive you want the filters to be. Both click and crackle are variable. > All files must be in wav format. > I have DC8 and Sound Forge, and go for Clickrepair as the better software. > Also from Brian Davies is his noise reduction..... another great tool. Just be careful not to over process an suck all the life out of the recordings. > All the music on the Americanbeautiful site is processed with Clickrepair and Denoise...... > d nelson ward > > Beautiful Music you will never forget, at; http://www.americanbeautiful.podbean.com/ I think anyone interested in this type of work (unless they have the really high-end software like Cedar) should download a trial copy (valid for 21 days). That will go much farther than us chatting about it. <smile> The prices via the Kagi store are $45US for ClickRepair and $45US for both Denoise & DenoiseLF. The equalizer is free. If you pay via PayPal (a manual process), both combined are $70AUS. http://clickrepair.net/software_download/ Cheers, Richard On 2012-04-22 4:46 AM, Don Cox wrote: > However, LPs don't normally have crackle as 78s do. They tend to have > fairly widely spaced individual clicks (which 78s have too). > > I would describe crackle as a multitude of small clicks at random > intervals of many times per second. Generally the clicks differ on the two > walls of the groove. (LP clicks are more often on both walls.) > > As each little click is an impulse, it has a wide-band spectrum covering all > audible frequencies, so no kind of frequency-based filter can remove it. > However, the spectrum goes up higher than that of the music, and this > can be used for detection if the sample rate is high enough. > > Groove wear is another problem again. > > Regards -- Richard L. Hess email: [log in to unmask] Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX http://www.richardhess.com/tape/contact.htm Quality tape transfers -- even from hard-to-play tapes.